package com.arron.facade;

public class Popcorn {
    private static final Popcorn instance = new Popcorn();

    private Popcorn() {
    }

    public static Popcorn getInstance(){
        return instance;
    }

    public void on(){
        System.out.println("popcorn on...");
    }

    public void off(){
        System.out.println("popcorn off...");
    }

    public void pop(){
        System.out.println("popcorn poping...");
    }
}
